Method of making short-neck bottles



July 8', 1924. 1,500,484

H. o. BRAWNER METHOD OF MAKING SHORT NECK BOTTLES Filed May 51. 1923 Patented July 8, 1924s HARRY O. BBAVJNEB. 0F BALTIMORE, MARYLAND.

METHOD OF MAKING SHORT-NECK BOTTLES.

Application filed May 31, 1923. Serial No. 642,483.

To a-ZZ 2072 am it may concern:

Be it known that I, HARRY O. BRAWNER, a citizen of the United States, residing at Baltimore city, State of Maryland, have invented certain new and useful Improvements in Methods of Making Short-Neck Bottles, of which the following is a specification.

This invention relates to a new and improved method of making bottles having short necks. Heretofore in the manufacture of bottles of this kind there has been a considerable loss because, when the necks of the bottles have been reheated at the glory holes the bases of the necks have often become overheated and melted, thereby rendering the bottles unfit for use. In fact, under present conditions, only about one bottle in five of the short neck type can be used. As a result the cost of bottles of this kind is excessive.

One of the objects of the present invention is to avoid the waste that has heretofore occurred by forming the bottle necks longer than those desired on the finished bottles so that the bottles can be held to the glory holes during the reheating of the necks without overheating the bases of the necks and melting them, the surplus portions of the necks being subsequently removed by cutting or grinding.

With the foregoing and other objects in view which will appear as the description proceeds the invention consists of certain novel steps in the method hereinafter more fully described and pointed out in the claim, it being understood that changes can be made within the scope of the claim without departing from the spirit of the invention.

In the accompanying drawings the steps of the process have been illustrated.

In said drawings-- Figure 1 is an elevation of a bottle having a short neck, such as produced by the present method.

Figure 2 is an elevation of the bottle as it appears prior to the final step of the method.

Figure 3 is an enlarged section on line- 33 Figure 2.

Figure 4 is a view similar to Figure 3 showing a modified form.

Referring to the figures by characters of reference 1 designates the body of the bottle having a short neck 2 the end of which is surrounded by a rib 3. In making the bottle it is blown in the usual manner but with a neck that is longer than is intended for the finished bottle. Thus the neck can be reheated at the glory hole of the furnace and there will be no danger of overheating and melting the base portion of the neck. The reason for this will be understood when it is considered that with the relative long neck of the present invention, the month end of the neck may be heated without bringing the base into contact with the flame, the lower part or base portion of the neck being sufiiciently hardened by conduction. It is, of course, understood that this relative long neck is not finished in the mold nor provided with a mouth head or lip in such mold, the

finishing being accomplished after the reheating. The neck can be finished with a pair of parallel beads as shown at 3 and 4 in Figure 2 or, if preferred, it can be made with a single bead spaced inwardly from the free end of the neck, as shown at 5 in Figure 4. After the neck has been reheated and shaped it is allowed to cool and the outer rib portion l is ground or cut off by any well known means or, in the structure shown in Figure lthe end of the neck is cut away down to the bead 5. In either case the finished bottle will appear as shown in Figure l and the danger of loss is reduced to the minimum.

lVhat is claimed is:

The method of forming bottles with short necks which consists in forming a bottle with a neck having a relative long surplus end. portion, reheating and. shaping the neck to form an intermediate annular rib, and finally removing the surplus end portion from the mouth up to the rib to produce a finished bottle.

In testimony whereof I aifix my signature.

HARRY O. BRAWN ER.

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